Absolutely potty: £640 for a Moby Dick novel (but it's typed out on four and a half toilet rolls!)

Some people will go to any lengths to win a bet - including one man who spent hours typing out an 822 page novel onto a set of toilet rolls.

But even more puzzling is now that he has finished copying across the classic novel Moby Dick, he is trying to sell the four and a half rolls on eBay for £640.

The American was challenged by a friend to write a book on a loo roll after joking that toilet tissue should come with instructions.

Weird wager: The American was challenged by a friend to write a book on a loo roll after joking that toilet tissue should come with instructions

Roll for your money: The four and a half 'clean' toilet rolls are advertised on eBay with a starting price of $999.95 (£640) but is yet to receive a single bid with the auction ending in the early hours of Thursday morning

Labour of love: He typed out the 822-page Herman Melville novel - which tells the story a sailor hunting a giant sperm whale - on four-and-a-half 'clean' toilet rolls

He went through with the weird wager and is now selling the work of art on eBay for a staggering £640.

The man, who is from Florida and goes by the name 'The-Heppcat'.

He is selling the toilet roll 'to prove the doubters I actually did it'.